Fossil and modern wolf teeth show that as winters grow warmer and snow declines, gray wolves are forced to work harder for food.

Gray wolves adapt their diets as a result of climate change, eating harder foods such as bones to extract nutrition during ...

Learn how warming winters are making life harder for grey wolves, a struggle that the species has faced at least once before.

In Yellowstone National Park — where gray wolves were reintroduced starting in 1995 — researchers have gone back and forth on whether the restoration of wolves has impacted the ecosystem. The idea is ...